וַיֹּ֥אמֶר יְהוָ֖ה אֵלַ֣י לֵאמֹ֑ר רָאִ֙יתִי֙ אֶת־הָעָ֣ם הַזֶּ֔ה וְהִנֵּ֥ה עַם־קְשֵׁה־עֹ֖רֶף הֽוּא׃
At sinabi sa akin ng Walang-Hanggan: “Nakita Ko ang bayang ito, at narito, ito ay isang bayang matigas ang ulo.
Sforno
ובחורב הקצפתם, Moses underlines the serious nature of this negative characteristic known as “stiff-necked,” by reminding the people that even at Mount Sinai when G’d had already decided to wipe them out, (verse 14 our chapter) G’d had justified this by referring to their stiff-necked nature. He had not decreed death for them on account of a specific and horrific sin, but on account of their attitude which bode ill for the future, indicated that such a people was not capable of becoming true penitents.